I'm also experiencing a lot of crashes in Bloom R9.
They happen when developing Apex or Aura or when just browsing through code (have not tried running tests yet).
I'm using TWS in a larger project (one project in solution).
I even re-installed TWS this morning (and wiped my preferences as well) but it has no effect.
I'm not using OAUTH.
EDIT: Happens with different projects as well.
I've submitted several bug reports via the IDE (after restarting it).
It would be great if you could get a handle on this issue as soon as possible since developing for more than 15min without crash is not possible at the moment.
Edit 2: I attached a windows event log message. If you require a translation, please let me know.